package com.hdyg.sixg.ui;

/**
 * Created by Administrator on 2017/8/30.
 */

import android.app.Activity;
import android.app.AlertDialog.Builder;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.net.Uri;
import android.os.Build;
import android.os.Handler;
import android.os.Message;
import android.support.v4.content.FileProvider;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.PopupWindow;
import android.widget.ProgressBar;
import android.widget.TextView;

import com.hdyg.sixg.R;
import com.hdyg.sixg.util.PopWindowUtil;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;


/**
 * 在线更新 实现类
 * 先初始化  在调用checkUpdateInfo方法
 */
public class UpdateManager {
    private Context mContext;

    //提示语
    private String updateMsg = "有最新的软件包哦，亲快下载吧~";

    //返回的安装包url
    private String apkUrl;
    private String versionDes;


    private Dialog noticeDialog;

    private Dialog downloadDialog;
    /* 下载包安装路径 */
//    private static final String savePath = "/sdcard/update/";
    private static final String savePath = "/sdcard/update/";

    private static final String saveFileName = savePath + "UpdateRelease.apk";


    /* 进度条与通知ui刷新的handler和msg常量 */
    private ProgressBar mProgress;


    private static final int DOWN_UPDATE = 1;

    private static final int DOWN_OVER = 2;

    private int progress;

    private Thread downLoadThread;
    private PopupWindow mPopupWindow;

    private boolean interceptFlag = false;

    private Handler mHandler = new Handler() {
        public void handleMessage(Message msg) {
            switch (msg.what) {
                case DOWN_UPDATE:
                    mProgress.setProgress(progress);
                    break;
                case DOWN_OVER:

                    installApk();
                    break;
                default:
                    break;
            }
        }
    };

    //初始化
    public UpdateManager(Context context, String apkUrl, String versionDes) {
        this.mContext = context;
        this.apkUrl = apkUrl;
        this.versionDes = versionDes;
    }

    //外部接口让主Activity调用
    public void checkUpdateInfo() {
        showNoticeDialog();
    }

    //版本更新弹窗
    private void showNoticeDialog() {
        if (((Activity) mContext).isDestroyed()) {
            return;
        }
        View view = View.inflate(mContext, R.layout.sys_pop_version_update, null);
        TextView tvVersionDes = (TextView) view.findViewById(R.id.tvVersionDes);//描述
        TextView tvSure = (TextView) view.findViewById(R.id.tvSure);//确定
        TextView tvCancle = (TextView) view.findViewById(R.id.tvCancle);//取消
        tvVersionDes.setText(versionDes);
        tvSure.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mPopupWindow.dismiss();
                showDownloadDialog();
            }
        });
        tvCancle.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mPopupWindow.dismiss();
            }
        });
        mPopupWindow = PopWindowUtil.getInstance()
                .makePopupWindow(mContext, view,ViewGroup.LayoutParams.MATCH_PARENT)
                .showLocation(mContext, view, Gravity.CENTER,0, 0, 0);
    }

    //下载窗口
    private void showDownloadDialog() {
        Builder builder = new Builder(mContext);
        builder.setTitle(R.string.sys_version_title2);

        final LayoutInflater inflater = LayoutInflater.from(mContext);
        View v = inflater.inflate(R.layout.sys_progress, null);
        mProgress = (ProgressBar) v.findViewById(R.id.progress);

        builder.setView(v);
        builder.setNegativeButton(R.string.sys_cancel, new OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
                interceptFlag = true;
            }
        });
        downloadDialog = builder.create();
        downloadDialog.show();

        downloadApk();
    }

    private Runnable mdownApkRunnable = new Runnable() {
        @Override
        public void run() {
            try {
                URL url = new URL(apkUrl);

                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                conn.connect();
                int length = conn.getContentLength();
                InputStream is = conn.getInputStream();

                File file = new File(savePath);
                if (!file.exists()) {
                    file.mkdir();
                }
                String apkFile = saveFileName;
                File ApkFile = new File(apkFile);
                FileOutputStream fos = new FileOutputStream(ApkFile);

                int count = 0;
                byte buf[] = new byte[1024];

                do {
                    int numread = is.read(buf);
                    count += numread;
                    progress = (int) (((float) count / length) * 100);
                    //更新进度
                    mHandler.sendEmptyMessage(DOWN_UPDATE);
                    if (numread <= 0) {
                        //下载完成通知安装
                        mHandler.sendEmptyMessage(DOWN_OVER);
                        break;
                    }
                    fos.write(buf, 0, numread);
                } while (!interceptFlag);//点击取消就停止下载.

                fos.close();
                is.close();
            } catch (MalformedURLException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }

        }
    };

    /**
     * 下载apk
     *
     * @param
     */

    private void downloadApk() {
        downLoadThread = new Thread(mdownApkRunnable);
        downLoadThread.start();
    }

    /**
     * 安装apk
     *
     * @param
     */
    private void installApk() {

        File apkfile = new File(saveFileName);
        if (!apkfile.exists()) {
            return;
        }
        Intent i = new Intent(Intent.ACTION_VIEW);
        Uri uri = null;
        // android 7.0 获取 uri
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            i.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
            uri = FileProvider.getUriForFile(mContext, mContext.getPackageName() + ".fileProvider", apkfile);
        } else {
            uri = Uri.parse("file://" + apkfile.toString());
        }
        i.setDataAndType(uri, "application/vnd.android.package-archive");
        mContext.startActivity(i);
    }
}
